Exam (elaborations)
AGRISCIENCE CDE QUESTIONS AND ANSWERS
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AGRISCIENCE CDE QUESTIONS AND ANSWERS
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Name: Score:83 Multiple choice questions
Term 1 of 83
The loss of the rain forest of the Amazon has accelerated since the early 1990s.
True
False
Term 2 of 83
The USDA monitors groundwater quality and enforces point and non-point source pollution
laws to help protect our land and water.
True
False
Term 3 of 83
A substance that dissolves or otherwise changes most other materials is called an:
Universal Solvent
Adhesion
Compost
Infiltrating Medium
Term 4 of 83
What is the most abundant element in the air?
Water
Sulfur
Ozone
Nitrogen
,Term 5 of 83
What is neutral on the pH scale?
Neutral
Gravitational
7
True
Term 6 of 83
Once clean water is mixed with contaminants, it is not safe for use for other purposes until it is
cleaned and __________________.
Stored
Contaminated
Purified
Diluted
Term 7 of 83
What heat and friction-resistant material once was used extensively in vehicle brakes and
clutch linings, shingles, and water pipe insulation?
Particulates
Asbestos
Ozone
Radon
,Term 8 of 83
For human survival, approximately what percentage of the air must be oxygen?
21%
13%
16%
20%
Term 9 of 83
What describes drinking water that is free from harmful microorganisms or chemicals?
Desechable
Potable
Fresh
Particulates
Term 10 of 83
A water _______________ refers to that level below which soil is saturated or filled with water.
Surface
Layer
Boundary
Table
Term 11 of 83
The addition of water to plants to supplement the water provided by rain or snow is called:
Fertilization
Irrigation
Agriculture
Cultivation
, Term 12 of 83
What poisonous product is still used in developing countries?
Tetraethyl Lead
Asbestos
Compost
Sulfur
Term 13 of 83
Soil capability subclasses are designated by:
percolation
e, w, s, c
gravitational
respiration
Term 14 of 83
The area or type of environment in which an organism or biological population normally lives
is the:
Habitat
Ecosystem
Hydroponics
Niche
Term 15 of 83
An estimated 330,000 tons of pesticides are applied yearly on U.S. crops.
True
False
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